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patent 3,247
scientific american 2,270
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tion 993
iron 855
patent office 822
american 756
patents 646
claim 616
address munn 592
patented 572
munn 570
horse power 562
purpose set 561
combination 556
manner 500
purpose 461
purposes set 450
sewing machine 415
steam engine 375
improved 372
american supplement 366
wrought iron 365
apparatus 333
cast iron 318
electric 310
tbe 310
feet 295
water 279
consists 275
machine 259
york city 257
arranged 240
express money 239
Patent laws and legislation 222
years ago 201
constructed 200
price list 197
letters patent 195
set 191
carbonic acid 180
boiler 171
Patents 170
steam boiler 154
electric light 151
United States. Patent Office 147
steam engines 129
inches 126
ment 124
sulphuric acid 122
Patent medicines 121
large number 116
improvement 115
railroad 114
center 99
cubic feet 99
device 98
hot water 92
sheet metal 92
gas engine 91
american patent 90
nitric acid 90
tlie 90
hot air 86
valve 85
color 84
feed water 81
india rubber 81
gas 76
illustrated 73
steel 71
adapted 64
coal tar 64
specific gravity 64
trade mark 64
wood working 63
contained 62
steam power 62
manufacture 61
air 59
compressed air 58
feet long 58
address 57
post office 57
vessels 56
flax 55
rifled cannon 54
square inch 54
patent granted 53
automobile 52
great variety 52
arrangement 51
find directions 51
takes place 51
bicycle 50
general lyon 50
bilge timbers 49
grand gold 49
rifled 49
small quantity 49
straw carrier 49
Agriculture 48
Patent laws and legislation -- United States 48
nautical knots 47
turbine water 47
undivided half 47
wheel 47
wire 46
Copyright 45
engine 45
manner set 45
floor plans 44
gutta percha 43
great deal 42
motor 42
oil 42
cotton 41
fulton 41
machinery 41
short time 41
Trademarks 40
asks 40
patent issued 40
postal union 40
american supplements 39
copyright 39
water wheel 38
inch 37
ofthe 37
Patent 36
square feet 36
patent law 35
purposes 35
torpedo 35
cents 34
great britain 34
Brevets d'invention 33
twelve months 33
illustrated catalogue 32
patent laws 32
slide valve 32
steam boilers 32
high pressure 31
provement 31
tbe purpose 31
water supply 31
american export 30
heat 30
water power 30
export edition 29
law 29
planing 29
pose set 29
postage included 29
rapid transit 29
storage battery 29
going 28
Letters patent--France--Early works to 1800. 27
east river 27
inventor 27
supreme court 27
torpedo boat 27
candle power 26
low pressure 26
perspective elevations 26
practical treatise 26
san francisco 26
steam pump 26
trade marks 26
grand cash 25
news 25
plate 25
send stamp 25
circuit court 24
financial 24
inventors 24
labor 24
natural gas 24
particulars address 24
pipe 24
trademark 24
Business 23
emery wheel 23
great number 23
gun cotton 23
science record 23
shaft 23
white lead 23
Almanacs, American 22
acid 22
antedated 22
carbolic acid 22
cold water 22
lower ends 22
magnetic 22
politics 22
reinforced concrete 22
steam fire 22
three times 22
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